Sector control for tabulating machines



W. W.. LASKER.

SECTOR CONTROLFORTABULATING MACHINES.

APPLICATION FILED APR.3,1918- Patented July 18, 1922.

B my awa UNITED stares PATENT oFFics.

WILLIAM w. LASKER, or BROOKLYN, NEW Yonx, ASSIGNOR 'ro rownns AcoooN'r- ING MACHINE COMPANY, on NEW YORK, Y., A CORPORATION or DELAWARE.

SECTOR CONTROL IEOR TABULATI NG MACHINES.

Application filed April 3,

To all whom it may concern:

'ments comprising type sectors and reciprocating rack bars positively driven for operating the type sectors. Such a machine is described in detail in my co-pending application Serial No. 158,142, filed March 28th,

1917; and, therefore, only the parts of such machine are herein described as are necessary for an understanding of the new im-' provements. I

In said machine the type are, mounted upon arcuate sections of the type sectors and are driven by intermeshing rack bars. As the type upon said sectors render one side of the sector heavier than the other, there is a tendency of the-type sector and the associated rack bar, to move in a retrograde direction after they have been moved forwardly to printing position. One object of the present invention is to provide improved and efiicient means for preventing this .re-

' sult. V

In said machine, each of the rack bars is provided with a depressible abutment lever provided with an abutment against which engages a transverse reciprocating bar for positively driving the bars and the type seetors to total taking position, the accumulating wheels which mesh with the type sectors being provided with projections adapted to engage a part for depressing said abutment levers for disengaging them from said transverse bar when total taking position is reached. Another improvement herein, has

Specification of Letters Patent.

Patented uly 18, 1922. 1918. Serial No. 226,499. e

In the accompanyingfdrawing showingby way of example one, of the many possible embodiments. of the invention,-

The figure is a"z longitudinal vertical sec-'- tional view through the printing and accounting machine, showing in side elevation the parts necessary for a proper understanding of the present invention.

In the said co-pending application meansare shown for feeding perforated cards to an analyzer comprising a reciprocating pin box provided with pins adapted to .feelthe cards and on finding perforations therein, to passtherethrough to raise registering stop pins corresponding to the perforations corresponding to numerals, the naught stop being normally raised and adapted by suitable connections to be depressed by the raising of the numeral stop pins. 7

In the present specification, the left hand endof the machine, as shown in the figure, is considered the forward end of the machine.

Referring more particularly to the drawing of the present specification, there is shown one of the cheek plates 10, between which cheek plates the various mechanisms of the accounting machine are mounted, these cheek plates being carried on a suitable base or frame not shown. Between said cheek plates there are mounted a plurality of rows of numeral stop pins 11 vertically slidable in upper and lower guide-plates 12, carried upon cross-plates 13 mounted upon the cheek plates. Each numeral stop pin is provided at its upper end with a head 15 provided at its rear part with a vertical face 16 and at its forward part with an inclined face 18. The lower part of each pin is provided with an elongated recess-19 in which engages one of the projections 20 carried on the restoring lever 21, fulcrumed at its forward end upon a shaft 22 carried by said cheek plates. The rear end of the restoring lever is pivotally connected to one end of a lever 24 of the first order which is intermediately fulcrumed on a rod 25 mounted in the cheek plates lO and has its other end loosely pivotall connected to the zero stops 26 vertically shdable in the'guide plates 12 and disposed just to the rear of the respective rows of pins 11.

By this means whenever a numeral pin 11 is raised the lower part of the recess 19 engages one of the projections 20 and causes the lowering of the zero stop 26, the -zero sto being normally raised.

Associated with each row of stop pins 11 is a shutter. 28 adapted to engage in a recess in the side of the stop pin to hold the same in raised position'and at the proper time to release the pins butthese are fully explained.in said co-pending application and need not be further described here.

Slidably disposed above each row of pins 11 is a reciprocating rack bar 30 guided in a pair of comb plates 31, and on a rod 32 mounted'in the cheek plates .and received in a slot 34 in the rear part of the rack bar. On the rear of each rack bar is provided an upturned standard 35 on the upper end of which is pivotally mounted a holding pawl 36, the object of which will be presently ex lained.

he forward part of the upper edge of each rack bar 30 is provided with a series of teeth 38 adapted to mesh with a gear wheel 39 fixed upon the side of each type sector 40 rotatably mounted upon the sector shaft 41, each sector is provided with a series ofrinting type 42 and a series of gear teet '43 adapted to engage with the accumulator wheels 44.

' Against one sideof each rack bar 30 there is disposed an'abutment lever 50 pivoted at its forward end to the rack bar and extending rearwardly along said rack bar above said rod 32. A spring 51 strained between the rear end of the rack bar and the forward end of the pawl 36 holds the rear end of the abutment lever and the rear end of the holdin pawl normally in raised position. In t e figure the abutment lever is shown in depressed position.

The intermediate part of the abutment lever is slightly laterally offset forming a space for the reception of a tripping elbow lever 54 ivotally fulcrumed atjits elbow part to tile side of the rack bar '30 and provided at its forward end with-a lateral projecting pin 55 engaging in a small longitudinal slot 56 in the abutmei it lever. The lower end of the elbow :lever is provided with a laterally turned end forming an in.-

clined face 58 and a forward shoulder 59.

The rack bar 30 is provided with an upstanding abutment providedwvith aforwardly disposed shoulder 60, which when theabutment lever is raised, is opposed to and slightly spaced from the rearwardly disposed shoulder 61, formed by an upstanding abutment on the abutment lever.- Betweensaid shoulders is disposed a reciproeating rack bar 62 which is recipl'ocated forward andbackward by suitable means controlled by a suitable cam control means, as ex lained in said copending application.

on thetransverse bar 62 is retracted, it engages the shoulder 60 and retracts the 06 rack bars, the abutment levers and the elbow levers, whereupon said inclined face '58 engages the forwardly inclined forward bar 62 commences its forward movement, the

shoulder 61 is in raised position and is engaged by the transverse bar. If at this time the naught stop is in raised position the shoulder 59 presses upon the steeply inclined rear face 65 of the naught stop and causes the elbow lever to be rocked and the pin 55 to be lowered, whereupon the trans-- verse bar 62 isfreed from the rearwardly disposed shoulder 61, thus permitting the transverse bar 62 to move forwardly without carrying'forward the rack bar. If, however, in accordance with the perforations of the card being analyzed, one of the numeral stop pins 11 has been raised and the zero stop lowered, the elbow lever passes over the lowered zero stop without being rocked, whereupon the shoulder 61 remains raised and in contact with the transverse bar 62 until the shoulder 59 of the elbow lever comes into contact with the rear face 16 of the head 15 of the raised stop pinvll, whereupon the elbow lever is rocked and the transversebar 62 is freed and passes'on to complete its cycle of movement. This forward movement of the rack bar rocks the type sector40 and brings the type 42 corresponding to theraised stop pin in front of the reciprocating printing carriage, conventionally shown and indicated by reference numeral 68, whereupon as described in said co-pending application, the printing carriage 68 is moved toward the type and presses the paper carried thereon against the type and prints the number corresponding to the raised pin.

The rear face 65 of the zero stop is made steeply inclined, whereby when the rack bar 30 is retractiveenoughto carry the shoulder 59 to the rear of the zero stop it will surely snap behind the zero stop and engage said inclined face. i

1 Since, as is obvious by an inspection of r the figure,-1. the part ofthe type sector carrying the type is more remote from the center of the type sector than the other parts thereof, the weight of this part tends after the transverse bar 62 has been freed, to cause thetype segment to assume a movement which is anti-clockwise in the figure. Means for preventing this anti-clockwise movement will now be described.

Between the rear part of the cheek plates 10, there is disposed a vertically movable inverted U-shaped bracket 70 havin downturned arms'71 slidably engaging t e inner face of the cheek plates. These arms are guided in their movement at their up er part by means of a transverse rod 72 passing the cheek plates.

. fixed thereto a horizontal ratchet plate 77 entirely across the machine and through said arms and engaging inslots 73 provided in:

The lower ends of said arms are provided with elongated slots 74' receiving pins 75- projecting from the inner face of the cheek plates, whereby the lower ends of said arms are guided in their movement. The yoke 76 of the bracket 70 has provided in its lower face with ribs disposed'transversely of the machine and providing inclined rear faces'78 and forward vertical faces 79. This ratchet plate and wardly' under the actionof the transverse bar 62 during which time the rear end of the pawl'36 cams over the inclined faces and when the transverse bar 62 is freed the rear end of the pawl 36 engages the vertical face 79 and prevents any retrograde movementofthe rack bar or the type sector.

. Before the transverse bar;62 on its return movement retracts the rack bars, it is necessary to raise the ratchet plate 77 out of engagement with the .pawl 36, and this is accomplished by means ofthe mechanism which will now be described.

The fact that the ratchet plate 77- is common to all of the pawls 36 permits a slight lateral movement of the pawl, in machines where the pawls and rack bars are very thin, without the pawls becoming out of register with the ratchet plate.

The down-turned ends 71 of'the inverted bracket are provided with inwardly. projecting lifting pins 81 received in the slotted rear end of the lifting lever 82 intermediately and the cam groove is so designed, that the ratchet plate 77 y is raised out ofcontact with 'the pawl 36 before the transverse bar 62 retracts the rack bars. Y I

After the typersegments have beenposi;

'tioned by. a forward movement ofthe rack bar and before the ratchet plate has been 1 raised. to permit their rearward movement, it

. said type. sectors .are locked and lalinedl in positionby means :of the engagemenn be tween the teeth' 13, of a locking. bar slid: able in slots 96 provided inthecheek plates v andreciprocated by meansof alink98, have ingits upper endsecured topthe locking bar "and having its bifurcated lower end 99 straddling the cam shaft 91 whereby said link is guided. I Reciprocatory movement is imparted tothe link by means of the engagement of a roller 100 mounted on the link and engaging;.;in the cam groove 1 01 provided in a suitable cam wheel carried on the cam shaft 91. This cam groove 101 is so designed'that the type sectors are locked in place after they, have been positioned by the rack bars and are held locked during the time the printingtakes place and until the ratchet plate 79 is raised, but are released before the transverse bar 62 engages the shoulder 60 in its rearward movement.

Between the main cheek plates 10 there is slidably mounted behind the type sectors 40, the reciprocating accumulator carriage 105 provided with a shaft 106 on which are mounted the accumulator wheels 14; provided with teeth adapted to mesh with the gear teeth 43 of the type sectors. Fixed to the side of each accumulator wheel is a collar 109 provided opposite the zero tooth of the accumulator wheel with an inclined projection providing an inclined rear face 110 and a radial forward face 11. Diametrically opposite said projection, each collar is provided with acurved projection 112,

A complete description of the construction and operation of the reciprocating accumulator carriage and the means for -reciprocat ing it, is given in saidcopending application. The lever 114 and the cooperating parts at the lower left hand oornerfof the figure rev late to the means for reciprocating the accumulator carriage but are not described herein. :The accumulator carriage is during accumulation, reciprocated in such a manner that when the rack bars aremoving forward,

'to position the type sectors, the accumulator wheels are out of mesh with the type sectors; but when the type sectors are returning to their normal position, the. accumulator wheels are in.mesh with the type sectors and are each rotated a distance determined by the position in which the associated type sector was 'set.- When the accumulator wheels are set at zero, said radial face .111" engages behind the lower end, 115 of the horizontal lever 116 of the accumulator carlator wheels are moved in a direction which 1s clockwise on the figure of the drawing,

and when the accumulator wheel has made a,

complete revolutionthe inclinedface110 engage'slthe forward faceof said lowerend 115 of the horizontal lever whichfas ex'plainedin said loo-pending application, causes the lowering ofthekick-back device 117. at the lower part of the accu'm 'ilator; carriage which kicks'jbac k against the forwardly. disshoulder60 of the rack bar BOthedistance.. of one tooth of the accumulator wheel which effects the carryingt' j a I This takes: place after the rack bars have:

-riage. 'During accumulation the accumubeen retracted to their rear position in which position the rear end of the pawl 36 is behind the rearmost rib of the ratchet plate and does not in any way interfere with this kickback of the rack bar. 7 7

When a total is to be taken the zero stops are lowered by suitable mechanism as described in said copending application. This lowering, because of the length of the re-' cesses 19 does not raise the pins 11, whereby the shoulders 59 of the elbow levers are not obstructed when the rack bars move forwardly.

When a total is to be printed, the reciprocating mechanism of-the accumulator carriage operates to bring the accumulator rounded projection 112 engages the rollers as abrupt shoulder each column of the car wheels into mesh with the type sectors when the bar 62 is traveling forwardly. In this case the zero stop26 and the pins 11 are lowered, the forwardly disposed shoulder 61 is in raised position and-the rack bars .are carried forward by the transverse bar 62 until the radial face 111 of the accumulator wheels enga es the rear face of the lower end 115 of t e horizontal lever 116. When this takes place the curved pro'ection 112 engages with a roller 120 rotatably mounted upon a vertically slidable bracket 121 and. bears against the top edge of the associated abutment lever 50. The brackets 121. are provided with vertical slots 122,- receiving transverse rods 123 mounted upon the cheek plates 10 of the machine whereby vertical movement is permitted tothe brackets and the rollers carried thereon. When the {net explained and lowers the abutment ever, the rearwardly disposed shoulder 61- of the abutment lever is lowered and permits the transverse bar 62 to pass on forwardly leaving the rack bars as positioned by the wheels. From the foregoing operation the new improvements will be readily understood and need now be only briefly summarized as follows! v As the perforated cards are fed through the machine, for each column either a zero stop 26 is left raised or one of the pins 11 is raised and the zero Ste 26 is lowered for At this time the abutment lever-is raised, the reciprocating transverse bar 62 is in its rear position of movement, and the rearwardly disposed shoulder of the abutmentlever is disposed in front of the transverse bar. The trans-'" verse bar'then moves forwardly-until the shoulder59 of the elbow lever is forced into contact with the rear face of the raised stop 26 or pin 11, thus forcing down the abutment bar and the rearwardly disposed shoulder 61 and permitting the transverse bar 62 to travel free. Any movement of the rack bar which has then taken place is de- 111 of the accumulator.

passonfree.

type is positioned for printing. As this forward movement of the rack bars takes place 'municated to the type sector whereby the the pawl 36 engages the faces 79 of the ratchet plate and prevents any retrograde movement of the rack bars or the type seetors after the transverse bar 62 has been freed. Before the printing takes place the locking and alining bar 95 engages betweenthe teeth 43 and holds the tylpe sectors locked and alined while the printing carriage 68 forces the aper against the type. After the printing ta es placethe transverse bar 62 commences its rearward movement and before it has engaged the forwardly disosed shoulder 60, the locking and alining Bar 95 is moved out of contact with theteeth 43 and the ratchet face 79 is raised out of contact withthe pawl 36 whereby the rack bars may be retraced by the transverse bar 62 engaging the shoulder 60. When a total is taken the zero stop 26 is lowered by means described in said co-pen ding application; and because of the length of the recesses 19 in the lower part of the pins 11 this lowering of the zero stop may take place without raising the stop pins Therefore, when the reciprocating rack bar moves forwardly for taking the total, the zero stop and all of the pins 11 are lowered and the rack bars may move forwardly without anyv engagement of the elbow levers with the pins 11 or stop-26.

sectors, turn in anti-clockwise direction until the abrupt shoulder 111 of the accumulator wheels engages the lower end 115 of the horizontal lever. At this instant, the

rounded projection 112 engages. the roller transverse bar 62 to 120 and permits the Should it for an reason haplpenthat the .rack bars move rearwardly w ile an abutment lever is raised and a stop pin ll'or zero stop .26 is also raised, the inclined lower face of the elbow lever '54 merely cams over an inclined forward face 18 of apin 11 or an inclined forward face 64 of a zero stop 26. In this way injury to these parts is prevented.

I'claim as my invention:

1. In an apparatus of the character described, the combination of character carriers; means for preventing" retrograde movement of the carriers and comprisin a device associated with each carrier, an a single device engaged part common to all of the devices; and means for moving the single engaged part out, of the 'ath of the devices. '2. In an/ apparatus 0 the character described, the combination of character carriers; means for preventing retrograde movement of the carriers and comprising a device mounted on each carrier, and. a single device engaged part common to all of the carriers; and means for moving the engaged part out of the path of the devices.

'3. In an apparatus of the character described, the combination of character carriers; means for preventing retrograde movement of the carriers and comprising a pawl mounted on each carrier, and a single pawl engaged part; and means for moving the engaged part out of the path of the I 4. In an apparatus of the character described, the combination of actuating members, character carriers controlled by the members; a holding pawl on each member;

trolled by the reciprocating bars; a holding pawl mounted on each reciprocating bar; a

ratchet plate adapted to be engaged by said pawls to hold the reciprocating bars and carriers from retrograde movement; and means for moving the ratchet plate into or out of the path of the pawls.

6; In an apparatus of the character .described, the combination of reciprocating bars; type sectors controlled by the bars; a pawl on each bar; a ratchet plate adapted to be engaged by the pawls; and means for moving the ratchet plate away from the pawl.

'7. In an apparatus of the character described, the combination of rows of vertically movable pins; a reciprocating bar associated with each row; type sectors controlled by the reciprocating bars; a holding pawl pivoted to the rear part of each reciprocating bar; a vertically movable horizontally disposed ratchet plate adapted to be engaged by said pawls to hold the reciprocating bars and type sectors from retrograde movement; a.

cam operated part operatively connected to said ratchet plate; a cam engaging said part for lowering the ratchet plate when the reciprocating bars are retracted and means controlled b said pins for moving said reciprocating als forwardly.

8. In an apparatus of the character described, the combination of rows of vertically movable pins; a reciprocating bar above each row and provided with a forwardly disposed shoulder; type sectors and accumulating means controlled by said bars; an abutment lever pivoted to each bar and pro vided with a rearwardly disposed shoulder opposing the forwardly disposed shoulder;

bar and connected to the abutment part of each reciprocating bar; means for holding-the rear part of said pawl sli htly raised and said abutment lever yiel ably raised; a verticall movable horizontally disposed ratchet-pi ate disposed above said pawls and provided with transverse ratchet ribs having abrupt shoulders and inclined rear shoulders, said'ribs being adapted when the ratchet plate is lowered to be engaged by said holding pawl to prevent retrograde movement of the type sectors; a lifting lever operatively connected to the ratchet plate; a camlever operatively connected to the lifting lever; a cam wheel provided with a groove engaging said cam lever and so shaped that said ratchet plate is raised out of contact with the holding pawls while the rack bars are being retracted; and a transverse reciprocating bar adapted to be dis posed between said shoulders for reciproeating the reciprocating bars.

9. In an apparatus of the character described, the combination of a plurality of. rows of vertically movable pins; a zero stop vertically and slidably disposed at the rear of each of said rows; a longitudinally disposed ,reciprocatin rack bar above each row and provided with a rearwardl disposed shoulder, and at its rear end with an upturned standard; a holding pawl intermediately pivoted on the upper end of said standard; an abutment lever pivoted to each rack bar and provided with arearwardly disposed shoulder adapted, when the abutment lever is raised'to oppose said forward disposed shoulder; a sprlng'tensioned between the forward part of said pawl and the rear part of said; abutment lever, whereby the rear art of said pawl is normally slightly raised and said rearwardly disposed shoulder is normally raised to oppose said forwardly disposed shoulder; a transverse reciprocating bar disposed between the opposed shoulders; an elbow lever fulcrumed on each rack bar and having its forward part connected to said abutment lever and its lower end provided with a shoulder adapted to engage behind said zero stopor an raised associated pin' whereby when the rac bar is moved forwardly the rack bar is stopped and the abutment lever is lowered to continue forwardly; type sectors and accumulating means operated bysaid rack bars; an inverted U shaped bracket vertically movable near said standards; a ratchet plate mounted upon the yoke of said inverted bracket andprovided with transverse ratchet ribs having abru t front shoulders and inclined rear shoul ers, said ribs being adaptthe lifting lever; and a cam wheel provided with a groove receiving said roller and so shaped that said ratchet plate is raised out of contact with the holding pawls while the rack bars are being retracted. r

10. In a device of the character described,

the combination of accumulators; means for positioning the accumulators; means for driving the positioning means for position ing the accumulators; and means operated by the accumulators for rendering the connection between the positioning means and the driving means inoperative when the total indicating position is reached.

11. In a device of the character described, the combination of accumulators; means for positioning the accumulators; means for driving the positioning means for positioning the accumulators; and rollers operated by the accumulators for rendering the connection between the positioning means and the driving means inoperative when the total indicating position is reached.

12. In a device of the character described, the combination .of accumulating means; means for positioning the accumulating means comprising a movable part; means for engaging said movable part for positioning the accumulating means; and a roller adapted to be engaged by the accumulating means for pushing said movable part out of the path of said driving means when the accumulator is in total indicating position.

13. In a device of the character described, the combination of accumulating wheels provided with projections; means for stopping the accumulating wheels in zero position for indicating totals; means for posi- .tioning the accumulator wheels and provided with depressible devices; means engaging behind said depressible devices for driving the positioning means; and a roller adapted to be engaged by said projection for depressing said depressible device.

14. In an apparatus of the character described, the combination of a. plurality of type carrying means; means for positioning said type carriers comprising a depressible device provided with an abutment shoulder;

accumulating means connected with the type carrying means and provided with a projection; means for stopping the accumulating means in position to print totals; means adapted to be engaged by said projection for depressing said depressible means; and

means for engaging said shoulder and driving said positioning means until, the depressible device is depressed.

15. In an apparatus of the character described, the combination of a plurality of type sectors; selecting bars operatively connected to each type sector; an abutment lever carried by each selecting bar and provided with a shoulder; a transverse bar adapted to engage behind said shoulder for driving the selecting bar and the. type sector; selective means associated with each selecting bar for lowering the abutment lever when the desired position of the selecting bar and type sector is reached; accumulator wheels operatively connected to the type sectors and each provided with a projection; means for stopping sald accumulator wheels in zero position when taking a total; and a roller disposed over each abutment lever and adapted to be contacted by the projection and to lower the abutment lever when the accumulator wheel is in zero position.

16. In an apparatus of the character described, the combination of rows of vertically movable pins; a longitudinally disposed rack bar above each row; an abutment-lever pivoted to each rack bar and provided with a rearwardly disposed shoulder; a transverse reciprocating bar adapted to engage behind said shoulder when the abutment lever is raised; a tripping lever pivotally connected to said abutment lever and rack bar and adapted to en age any raised pin of the associated-row or lowering the abutment lever; type sectors meshing with each rack bar; accumulator wheels adapted to mesh with said sectors respectively and each provided with a rounded projection; means for stopping said accumulator wheels in zero position when taking totals; and a vertically movable roller disposed above each abutment lever and adapted to be contacted by said projection and to lower the abutment lever when the accumulator wheel is in zero position, whereby the transverse bar is permitted to move forwardly.

17. In an apparatus of the character de scribed, the combination of rows of vertically movable pins; a zero stop vertically movable at the rear of each of said rows; a longitudinally disposed reciprocating rack bar above each row and provided with a forwardly disposed shoulder; an abutment lever pivoted to each rack bar and provided with a rearwardly disposed shoulder adapted when the abutment lever is raised to be opposed to said forwardly disposed shoulder; a transverse reciprocating bar adapted to be disposed between said shoulders; an elbow lever fulcrunied at its elbow to each rack bar and having its forward end pivotally connected to said abutment lever and its lower end adapted to engage behind a raised pin or stop ofthe associated row whereby when said rack bar moves forwardly, the rack bar is stopped and the abutment lever is lowered to permit the transverse bar to be moved forwardly; type sectors meshing with saidrack bars; a reciprocating accumulator carriage provided with accumulator wheels adapted to mesh with said sectors re-' spectively; a collar secured to each accumulator wheel and provided with a rounded projection diametrically opposite to the zero tooth and with an inclined projection adjacent to the zero tooth and having an abrupt forward shoulder; a lever having a hooked end adapted to engage and stop the accumu lator wheel when taking totals; a vertical slidable bracket associated with each rack bar; and a roller carriage on each bracket and rolling on the adjacent abutment lever and adapted to be contacted and depressed by the rounded projections of the associated accumulator wheel when the latter is stopped in the zero position during total taking, whereby thetransv'erse bar is freed.

18. In an apparatus of the character described, thecombination of rows of vertically movable pins; a vertically movable .zero stop at the rear of each row and proders.

19. In an apparatus of the character described, the combination of rows of movable I pins; a vertical movable Zero stop at the rear of each row and provided with a steeply inclined rear face: a reciprocating bar above each row; accumulating means controlled by said bars; an abutment lever pivoted to each bar and provided with a rearwardly disposed shoulder; a tripping lever connected to each bar and abutment lever and adapted to engage said inclined face or any raised pin and thereby to lower said abutment lever; and means engaging behind said shoulders for driving said bars forwardly when the abutment levers are not lowered.

20. In an apparatus of the character described; the combination of a plurality of rows of vertically movable pins; a zero stop vertically and slidably disposed' at the rear of each of said rows and provided with a steeply inclined upper rear face; a longitudinally disposed reciprocating rack bar above each row and provided with a for- I wardly disposed shoulder; an abutment lever pivoted to each rack bar and provided with a rearwardly. disposed shoulder adapted,

when the abutment lever is raised, to be op-j posed to and slightly spaced from said forwardly disposed shoulder; a transverse reciprocating bar adapted to be disposed between said'shoulders; an elbow lever fulcrumed on each rack bar and having one end connected to the abutment lever and provided with a shoulder adapted to engage said steeply inclined rear face when the zero stopis raised, or to engage behind any raised associated pin whereby when the rack bar is moved forwardly the rack bar is stopped and the abutment lever lowered to v permit the transverse bar to move forwardly; and tabulating and accumulating means controlled by said rack bars.

21. In an apparatus of the character described, the combination of a plurality of rows of vertically movable pins each provided with a forwardly beveled head; a zero stop vertically slidably disposed at the rear 85 of each ofsaid rows and provided with a downwardly inclined upper front face and a steeply inclined upper rear face; means for lowerlng the zero stop when one of the associated pins is raised; a longitudinally disposed reciprocating rack bar above each of said rows and provided at its intermediate part with an upstanding rearwardly disposed shoulder; an abutment lever disposed against each rack bar and having its for- 96 ward end pivoted to the rack bar and its intermediate part provided with a slot and an upstanding rearwa-rdly disposed shoulder spaced from and opposed to said forwardly disposed shoulder when the abutment lever 100 is raised; means yieldably holding said abutment lever in raised position whereby said shoulders oppose each other; a transverse reciprocating bar adapted to be disposed between said shoulders when opposed; 106 an elbow lever fulcrumed at its elbow to each rack bar and provided at its forward end with a pin engaging in said slot and at its lower end with a forwardly and downwardly inclined lower face adapted to cam over 110 any associated raised pin or zero stop as the rack bar moved rearwardly whereby said abutment lever is raised, said lower end being also provided with a shoulder being adapted to engage behind a raised pin or stop whereby when said rack bar is moved forwardly, the rack bar is stopped and the abutment lever is lowered to permit the transverse bar to move forwardly; and type sectors-operated by said rack bar.

22. In an apparatus of the character described, the combination of a pair of check plates; a plurality of rows of vertically movmg stop ins mounted between said cheek plates an each provided with a lower elongated recess and a forwardly and downwardl beveled head; a zero sto vertically slidab y disposed at the rear 0 each row and provided with a forwardly and downwardly inclined upper front face and a steep rearwardly and downwardly inclined upper rear face; a pivoted restoring bar associated with each row and provided with projections engaging in said recesses; leversof the first order associated with each row and having one end pivoted to the zero stop and the other pivoted to said restoring bar whereby when any one of said pins is raised the associated zero stop is lowered; a longitudinally disposed reciprocating rack bar above each of said rows and provlded at its intermediate part with an upstanding abutment forming a forwardly disposed shoulder, and at the forward part of lts upper edge with a plurality of rack teeth; an abutment lever disposed against the side of each rack bar a-nd'fhaving its forward end pivoted to the forward end of the rack bar and its intermediate part provided With an elongated slot and an upstanding abutment having a rearwardly disposed shoulder spaced from and adapted, when the lever is raised,to be opposed to said forwardl disposed shoulder; means yieldably holing said abutment lever in raised position, whereby said shoulders op- Y to engage behind a raised pin or stop as the rack bar is moved forwardly, whereby said rack bar is stopped and the elbow lever rocked forwardly to lower the abutment lever to permit the transverse bar to move forwardly; andtype sectors provided with gear {)eeth meshing with the teeth of the rack ars.

WILLlAM W. LASKER. WVitnesses:

H. M. .KILPATRICK, HAROLD D. Farmer. 

